TEMPERATURE C F 800 Figure 15: Manganese Steels: 1335 Af 1400 A 700- As A+F 1200 600- 1000 500 400 800 Ms 600 300- M50 Mgo 200 400 100 200 A+F+C 0.5 12 5 10 50%- I MIN I-T DIAGRAM 102 TIME - HARDNESS-RC 86 RB 15 F+C 18 21 33 41 46 IHOUR IDAY IWEEK 59 103 104 105 106 SECONDS Problem 1 Part B: For the diagram and heat treatment listed above give the percentage of Upper Bainite: Your Answer Problem 1 Part D: For the diagram and heat treatment listed above give the percentage of Quenched Martensite: Your Answer Instructions: For the following problems utilize the listed TTT Diagram from your Equation Booklet. The treatment begins with austenitizing temperature. RT = Room Tempearture. Use 1 for 0% Transformed as an answer! --Given Values-- = Time Temperature Transformation Diagram: 1335 Steel = Heat Treatment: Quench to 800 F hold for 5 seconds then quench to RT